In recommending that citizens who visit radical Web sites be arrested, French President Sarkozy is possibly driving extremism even further underground and missing an opportunity to address the real roots of radicalization, said a Washington anti-terror think tank.

With reliable human intelligence becoming even more sparse from within the Yemen-based Al Qaeda in the Arabian Peninsula (AQAP) following the drone strike in September that killed its chief recruiter and operations mastermind, Anwar Al Awlaki, a debate has been waged among Western counterterror authorities over the internal command structure of AQAP and Al Shabaab.

On July 11, 2011, massive explosions rocked southern Cyprus (see video). A visitor to the island might have jumped to the conclusion that a terrorist attack had just occurred; but the Cypriots knew better.

The Homeland Security Department within a month will have a plan for a biometric system capable of identifying individuals who have overstayed their visas, such as the recent would-be U.S. Capitol bomber.

There's plenty of talk about the role of the United States in cyber space. But what's lacking, one expert argues, is a defining doctrine. Ronald Marks, a senior fellow at George Washington University's Homeland Security Policy Institute and a veteran of the CIA, said doctrine is one of the "defining principles" of an actual policy. Audio.